Description

n-Butylfluorescein is a chemically modified derivative of fluorescein, designed for enhanced lipophilicity and specific binding characteristics. This compound matters for researchers and formulators requiring a specialized fluorescent tracer or probe with tailored solubility and spectral properties. It is needed by professionals in the life sciences for advanced biochemical assays, by material scientists developing sensor technologies, and by quality control laboratories in specialized industrial applications.

Application

• Biochemical Research & Assay Development: Used as a lipophilic fluorescent probe for studying membrane dynamics, protein interactions, and cellular uptake mechanisms.
• Diagnostic Reagent Formulation: Serves as a key component in the development of specialized diagnostic kits and stains for fluorescence microscopy.
• Material Science & Sensor Technology: Incorporated into polymer matrices or nanoparticle coatings to create advanced fluorescent sensors for environmental or biological detection.
• Industrial Tracer Applications: Employed as a high-sensitivity fluorescent marker in flow visualization studies and leak detection systems within controlled industrial processes.
• Pharmaceutical Research: Utilized in drug delivery studies to track the distribution and release of active pharmaceutical ingredients (APIs) from carrier systems.

Basic Information

Product Name	n-Butylfluorescein
CAS No.	335193-91-4
Molecular Formula	C28H26O5
Molecular Weight	442.50 g/mol
Synonyms	4'-Butylfluorescein; Butyl Fluorescein; Fluorescein Butyl Ether; 3',6'-Dihydroxy-4'-butylfluoran; 2-(6-Hydroxy-3-oxo-3H-xanthen-9-yl)-5-butylbenzoic Acid; 9-(o-Carboxy-4-butylphenyl)-6-hydroxy-3H-xanthen-3-one
EINECS	Contact for details

Quality Control

Our n-Butylfluorescein is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity verification, to ensure it meets the high standards required for research and industrial applications. A Certificate of Analysis (COA) detailing identity, purity, and relevant specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The product is light-sensitive and should be handled accordingly to maintain stability.

Specification

Item	Specification
Appearance	Orange to red powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Fluorescence Characteristics	Conforms to reference

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.